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hpcfb.c revision 1.61
      1 /*	$NetBSD: hpcfb.c,v 1.61 2021/04/24 23:36:54 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1999
      5  *         Shin Takemura and PocketBSD Project. All rights reserved.
      6  * Copyright (c) 2000,2001
      7  *         SATO Kazumi. All rights reserved.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *	This product includes software developed by the PocketBSD project
     20  *	and its contributors.
     21  * 4. Neither the name of the project nor the names of its contributors
     22  *    may be used to endorse or promote products derived from this software
     23  *    without specific prior written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     35  * SUCH DAMAGE.
     36  *
     37  */
     38 
     39 /*
     40  * jump scroll, scroll thread, multiscreen, virtual text vram
     41  * and hpcfb_emulops functions
     42  * written by SATO Kazumi.
     43  */
     44 
     45 #include <sys/cdefs.h>
     46 __KERNEL_RCSID(0, "$NetBSD: hpcfb.c,v 1.61 2021/04/24 23:36:54 thorpej Exp $");
     47 
     48 #ifdef _KERNEL_OPT
     49 #include "opt_hpcfb.h"
     50 #endif
     51 
     52 #include <sys/param.h>
     53 #include <sys/systm.h>
     54 #include <sys/kernel.h>
     55 #include <sys/signalvar.h>
     56 #include <sys/proc.h>
     57 #include <sys/kthread.h>
     58 #include <sys/device.h>
     59 #include <sys/conf.h>
     60 #include <sys/malloc.h>
     61 #include <sys/buf.h>
     62 #include <sys/ioctl.h>
     63 
     64 #include <sys/bus.h>
     65 
     66 #include <dev/wscons/wsconsio.h>
     67 #include <dev/wscons/wsdisplayvar.h>
     68 #include <dev/wscons/wscons_callbacks.h>
     69 
     70 #include <dev/wsfont/wsfont.h>
     71 #include <dev/rasops/rasops.h>
     72 
     73 #include <dev/hpc/hpcfbvar.h>
     74 #include <dev/hpc/hpcfbio.h>
     75 
     76 #include "bivideo.h"
     77 #if NBIVIDEO > 0
     78 #include <dev/hpc/bivideovar.h>
     79 #endif
     80 
     81 #ifdef FBDEBUG
     82 int	hpcfb_debug = 0;
     83 #define	DPRINTF(arg)	if (hpcfb_debug) printf arg
     84 #else
     85 #define	DPRINTF(arg)	do {} while (/* CONSTCOND */ 0)
     86 #endif
     87 
     88 #ifndef HPCFB_MAX_COLUMN
     89 #define HPCFB_MAX_COLUMN 130
     90 #endif /* HPCFB_MAX_COLUMN */
     91 #ifndef HPCFB_MAX_ROW
     92 #define HPCFB_MAX_ROW 80
     93 #endif /* HPCFB_MAX_ROW */
     94 
     95 /*
     96  * currently experimental
     97 #define HPCFB_JUMP
     98 */
     99 
    100 struct hpcfb_vchar {
    101 	u_int c;
    102 	long attr;
    103 };
    104 
    105 struct hpcfb_tvrow {
    106 	int maxcol;
    107 	int spacecol;
    108 	struct hpcfb_vchar col[HPCFB_MAX_COLUMN];
    109 };
    110 
    111 struct hpcfb_devconfig {
    112 	struct rasops_info	dc_rinfo;	/* rasops information */
    113 
    114 	int		dc_blanked;	/* currently had video disabled */
    115 	struct hpcfb_softc *dc_sc;
    116 	int dc_rows;
    117 	int dc_cols;
    118 	struct hpcfb_tvrow *dc_tvram;
    119 	int dc_curx;
    120 	int dc_cury;
    121 #ifdef HPCFB_JUMP
    122 	int dc_min_row;
    123 	int dc_max_row;
    124 	int dc_scroll;
    125 	struct callout dc_scroll_ch;
    126 	int dc_scroll_src;
    127 	int dc_scroll_dst;
    128 	int dc_scroll_num;
    129 #endif /* HPCFB_JUMP */
    130 	volatile int dc_state;
    131 #define HPCFB_DC_CURRENT		0x80000000
    132 #define HPCFB_DC_DRAWING		0x01	/* drawing raster ops */
    133 #define HPCFB_DC_TDRAWING		0x02	/* drawing tvram */
    134 #define HPCFB_DC_SCROLLPENDING		0x04	/* scroll is pending */
    135 #define HPCFB_DC_UPDATE			0x08	/* tvram update */
    136 #define HPCFB_DC_SCRDELAY		0x10	/* scroll time but delay it */
    137 #define HPCFB_DC_SCRTHREAD		0x20	/* in scroll thread or callout */
    138 #define HPCFB_DC_UPDATEALL		0x40	/* need to redraw all */
    139 #define HPCFB_DC_ABORT			0x80	/* abort redrawing */
    140 #define	HPCFB_DC_SWITCHREQ		0x100	/* switch request exist */
    141 	int	dc_memsize;
    142 	u_char *dc_fbaddr;
    143 };
    144 
    145 #define IS_DRAWABLE(dc) \
    146 	(((dc)->dc_state&HPCFB_DC_CURRENT)&& \
    147 	 (((dc)->dc_state&(HPCFB_DC_DRAWING|HPCFB_DC_SWITCHREQ)) == 0))
    148 
    149 #define HPCFB_MAX_SCREEN 5
    150 #define HPCFB_MAX_JUMP 5
    151 
    152 struct hpcfb_softc {
    153 	device_t sc_dev;
    154 	struct	hpcfb_devconfig *sc_dc;	/* device configuration */
    155 	const struct hpcfb_accessops	*sc_accessops;
    156 	void *sc_accessctx;
    157 	device_t sc_wsdisplay;
    158 	int sc_screen_resumed;
    159 	int sc_polling;
    160 	int sc_mapping;
    161 	struct proc *sc_thread;
    162 	void *sc_wantedscreen;
    163 	void (*sc_switchcb)(void *, int, int);
    164 	void *sc_switchcbarg;
    165 	struct callout sc_switch_callout;
    166 	int sc_nfbconf;
    167 	struct hpcfb_fbconf *sc_fbconflist;
    168 };
    169 
    170 /*
    171  *  function prototypes
    172  */
    173 int	hpcfbmatch(device_t, cfdata_t, void *);
    174 void	hpcfbattach(device_t, device_t, void *);
    175 int	hpcfbprint(void *, const char *);
    176 
    177 int	hpcfb_ioctl(void *, void *, u_long, void *, int, struct lwp *);
    178 paddr_t	hpcfb_mmap(void *, void *, off_t, int);
    179 
    180 void	hpcfb_refresh_screen(struct hpcfb_softc *);
    181 void	hpcfb_doswitch(struct hpcfb_softc *);
    182 
    183 #ifdef HPCFB_JUMP
    184 static void	hpcfb_thread(void *);
    185 #endif /* HPCFB_JUMP */
    186 
    187 static int	hpcfb_init(struct hpcfb_fbconf *, struct hpcfb_devconfig *);
    188 static int	hpcfb_alloc_screen(void *, const struct wsscreen_descr *,
    189 		    void **, int *, int *, long *);
    190 static void	hpcfb_free_screen(void *, void *);
    191 static int	hpcfb_show_screen(void *, void *, int,
    192 		    void (*) (void *, int, int), void *);
    193 static void     hpcfb_pollc(void *, int);
    194 static void	hpcfb_cmap_reorder(struct hpcfb_fbconf *,
    195 		    struct hpcfb_devconfig *);
    196 
    197 static void	hpcfb_power(int, void *);
    198 static bool	hpcfb_suspend(device_t, const pmf_qual_t *);
    199 static bool	hpcfb_resume(device_t, const pmf_qual_t *);
    200 
    201 
    202 void    hpcfb_cursor(void *, int, int, int);
    203 int     hpcfb_mapchar(void *, int, unsigned int *);
    204 void    hpcfb_putchar(void *, int, int, u_int, long);
    205 void    hpcfb_copycols(void *, int, int, int, int);
    206 void    hpcfb_erasecols(void *, int, int, int, long);
    207 void    hpcfb_redraw(void *, int, int, int);
    208 void    hpcfb_copyrows(void *, int, int, int);
    209 void    hpcfb_eraserows(void *, int, int, long);
    210 int     hpcfb_allocattr(void *, int, int, int, long *);
    211 void    hpcfb_cursor_raw(void *, int, int, int);
    212 
    213 #ifdef HPCFB_JUMP
    214 void	hpcfb_update(void *);
    215 void	hpcfb_do_scroll(void *);
    216 void	hpcfb_check_update(void *);
    217 #endif /* HPCFB_JUMP */
    218 
    219 struct wsdisplay_emulops hpcfb_emulops = {
    220 	.cursor		= hpcfb_cursor,
    221 	.mapchar	= hpcfb_mapchar,
    222 	.putchar	= hpcfb_putchar,
    223 	.copycols	= hpcfb_copycols,
    224 	.erasecols	= hpcfb_erasecols,
    225 	.copyrows	= hpcfb_copyrows,
    226 	.eraserows	= hpcfb_eraserows,
    227 	.allocattr	= hpcfb_allocattr,
    228 	.replaceattr	= NULL,
    229 };
    230 
    231 /*
    232  *  static variables
    233  */
    234 CFATTACH_DECL_NEW(hpcfb, sizeof(struct hpcfb_softc),
    235     hpcfbmatch, hpcfbattach, NULL, NULL);
    236 
    237 struct wsscreen_descr hpcfb_stdscreen = {
    238 	.name		= "std",
    239 	.textops	= &hpcfb_emulops, /* XXX */
    240 	.capabilities	= WSSCREEN_REVERSE,
    241 	/* XXX: ncols/nrows will be filled in -- shouldn't, they are global */
    242 };
    243 
    244 const struct wsscreen_descr *_hpcfb_scrlist[] = {
    245 	&hpcfb_stdscreen,
    246 	/* XXX other formats, graphics screen? */
    247 };
    248 
    249 struct wsscreen_list hpcfb_screenlist = {
    250 	.nscreens = __arraycount(_hpcfb_scrlist),
    251 	.screens = _hpcfb_scrlist,
    252 };
    253 
    254 struct wsdisplay_accessops hpcfb_accessops = {
    255 	.ioctl		= hpcfb_ioctl,
    256 	.mmap		= hpcfb_mmap,
    257 	.alloc_screen	= hpcfb_alloc_screen,
    258 	.free_screen	= hpcfb_free_screen,
    259 	.show_screen	= hpcfb_show_screen,
    260 	.load_font	= NULL,
    261 	.pollc		= hpcfb_pollc,
    262 	.scroll		= NULL,
    263 };
    264 
    265 void    hpcfb_tv_putchar(struct hpcfb_devconfig *, int, int, u_int, long);
    266 void    hpcfb_tv_copycols(struct hpcfb_devconfig *, int, int, int, int);
    267 void    hpcfb_tv_erasecols(struct hpcfb_devconfig *, int, int, int, long);
    268 void    hpcfb_tv_copyrows(struct hpcfb_devconfig *, int, int, int);
    269 void    hpcfb_tv_eraserows(struct hpcfb_devconfig *, int, int, long);
    270 
    271 struct wsdisplay_emulops rasops_emul;
    272 
    273 static int hpcfbconsole;
    274 struct hpcfb_devconfig hpcfb_console_dc;
    275 struct wsscreen_descr hpcfb_console_wsscreen;
    276 struct hpcfb_tvrow hpcfb_console_tvram[HPCFB_MAX_ROW];
    277 
    278 /*
    279  *  function bodies
    280  */
    281 
    282 int
    283 hpcfbmatch(device_t parent, cfdata_t match, void *aux)
    284 {
    285 	return (1);
    286 }
    287 
    288 void
    289 hpcfbattach(device_t parent, device_t self, void *aux)
    290 {
    291 	struct hpcfb_softc *sc;
    292 	struct hpcfb_attach_args *ha = aux;
    293 	struct wsemuldisplaydev_attach_args wa;
    294 
    295 	sc = device_private(self);
    296 	sc->sc_dev = self;
    297 
    298 	sc->sc_accessops = ha->ha_accessops;
    299 	sc->sc_accessctx = ha->ha_accessctx;
    300 	sc->sc_nfbconf = ha->ha_nfbconf;
    301 	sc->sc_fbconflist = ha->ha_fbconflist;
    302 
    303 	if (hpcfbconsole) {
    304 		sc->sc_dc = &hpcfb_console_dc;
    305 		sc->sc_dc->dc_rinfo.ri_flg &= ~RI_NO_AUTO;
    306 		hpcfb_console_dc.dc_sc = sc;
    307 		printf(": %dx%d pixels, %d colors, %dx%d chars",
    308 		    sc->sc_dc->dc_rinfo.ri_width,sc->sc_dc->dc_rinfo.ri_height,
    309 		    (1 << sc->sc_dc->dc_rinfo.ri_depth),
    310 		    sc->sc_dc->dc_rinfo.ri_cols,sc->sc_dc->dc_rinfo.ri_rows);
    311 		/* Set video chip dependent CLUT if any. */
    312 		if (sc->sc_accessops->setclut)
    313 			sc->sc_accessops->setclut(sc->sc_accessctx,
    314 			    &hpcfb_console_dc.dc_rinfo);
    315 	}
    316 	printf("\n");
    317 
    318 	sc->sc_polling = 0; /* XXX */
    319 	sc->sc_mapping = 0; /* XXX */
    320 	callout_init(&sc->sc_switch_callout, 0);
    321 
    322 	wa.console = hpcfbconsole;
    323 	wa.scrdata = &hpcfb_screenlist;
    324 	wa.accessops = &hpcfb_accessops;
    325 	wa.accesscookie = sc;
    326 
    327 	sc->sc_wsdisplay = config_found(self, &wa, wsemuldisplaydevprint,
    328 	    CFARG_EOL);
    329 
    330 #ifdef HPCFB_JUMP
    331 	/*
    332 	 * Create a kernel thread to scroll,
    333 	 */
    334 	if (kthread_create(PRI_NONE, 0, NULL, hpcfb_thread, sc,
    335 	    &sc->sc_thread, "%s", device_xname(sc->sc_dev)) != 0) {
    336 		/*
    337 		 * We were unable to create the HPCFB thread; bail out.
    338 		 */
    339 		sc->sc_thread = 0;
    340 		aprint_error_dev(sc->sc_dev, "unable to create thread, kernel "
    341 		    "hpcfb scroll support disabled\n");
    342 	}
    343 #endif /* HPCFB_JUMP */
    344 
    345 	if (!pmf_device_register(self, hpcfb_suspend, hpcfb_resume))
    346 		aprint_error_dev(self, "unable to establish power handler\n");
    347 }
    348 
    349 #ifdef HPCFB_JUMP
    350 void
    351 hpcfb_thread(void *arg)
    352 {
    353 	struct hpcfb_softc *sc = arg;
    354 
    355 	/*
    356 	 * Loop forever, doing a periodic check for update events.
    357 	 */
    358 	for (;;) {
    359 		/* HPCFB_LOCK(sc); */
    360 		sc->sc_dc->dc_state |= HPCFB_DC_SCRTHREAD;
    361 		if (!sc->sc_mapping) /* draw only EMUL mode */
    362 			hpcfb_update(sc->sc_dc);
    363 		sc->sc_dc->dc_state &= ~HPCFB_DC_SCRTHREAD;
    364 		/* APM_UNLOCK(sc); */
    365 		(void) tsleep(sc, PWAIT, "hpcfb",  (8 * hz) / 7 / 10);
    366 	}
    367 }
    368 #endif /* HPCFB_JUMP */
    369 
    370 /* Print function (for parent devices). */
    371 int
    372 hpcfbprint(void *aux, const char *pnp)
    373 {
    374 	if (pnp)
    375 		aprint_normal("hpcfb at %s", pnp);
    376 
    377 	return (UNCONF);
    378 }
    379 
    380 int
    381 hpcfb_cnattach(struct hpcfb_fbconf *fbconf)
    382 {
    383 #if NBIVIDEO > 0
    384 	struct hpcfb_fbconf __fbconf;
    385 #endif
    386 	long defattr;
    387 
    388 	DPRINTF(("%s(%d): hpcfb_cnattach()\n", __FILE__, __LINE__));
    389 #if NBIVIDEO > 0
    390 	if (fbconf == NULL) {
    391 		memset(&__fbconf, 0, sizeof(struct hpcfb_fbconf));
    392 		if (bivideo_getcnfb(&__fbconf) != 0)
    393 			return (ENXIO);
    394 		fbconf = &__fbconf;
    395 	}
    396 #endif /* NBIVIDEO > 0 */
    397 	memset(&hpcfb_console_dc, 0, sizeof(struct hpcfb_devconfig));
    398 	if (hpcfb_init(fbconf, &hpcfb_console_dc) != 0)
    399 		return (ENXIO);
    400 	hpcfb_console_dc.dc_state |= HPCFB_DC_CURRENT;
    401 
    402 	hpcfb_console_dc.dc_tvram = hpcfb_console_tvram;
    403 	/* clear screen */
    404 	memset(hpcfb_console_tvram, 0, sizeof(hpcfb_console_tvram));
    405 	hpcfb_redraw(&hpcfb_console_dc, 0, hpcfb_console_dc.dc_rows, 1);
    406 
    407 	hpcfb_console_wsscreen = hpcfb_stdscreen;
    408 	hpcfb_console_wsscreen.nrows = hpcfb_console_dc.dc_rows;
    409 	hpcfb_console_wsscreen.ncols = hpcfb_console_dc.dc_cols;
    410 	hpcfb_console_wsscreen.capabilities = hpcfb_console_dc.dc_rinfo.ri_caps;
    411 	hpcfb_allocattr(&hpcfb_console_dc,
    412 			WSCOL_WHITE, WSCOL_BLACK, 0, &defattr);
    413 	wsdisplay_cnattach(&hpcfb_console_wsscreen, &hpcfb_console_dc,
    414 	    0, 0, defattr);
    415 	hpcfbconsole = 1;
    416 
    417 	return (0);
    418 }
    419 
    420 int
    421 hpcfb_init(struct hpcfb_fbconf *fbconf,	struct hpcfb_devconfig *dc)
    422 {
    423 	struct rasops_info *ri;
    424 	vaddr_t fbaddr;
    425 
    426 	fbaddr = (vaddr_t)fbconf->hf_baseaddr;
    427 	dc->dc_fbaddr = (u_char *)fbaddr;
    428 
    429 	/* init rasops */
    430 	ri = &dc->dc_rinfo;
    431 	memset(ri, 0, sizeof(struct rasops_info));
    432 	ri->ri_depth = fbconf->hf_pixel_width;
    433 	ri->ri_bits = (void *)fbaddr;
    434 	ri->ri_width = fbconf->hf_width;
    435 	ri->ri_height = fbconf->hf_height;
    436 	ri->ri_stride = fbconf->hf_bytes_per_line;
    437 #if 0
    438 	ri->ri_flg = RI_FORCEMONO | RI_CURSOR;
    439 #else
    440 	ri->ri_flg = RI_CURSOR;
    441 #endif
    442 	if (dc == &hpcfb_console_dc)
    443 		ri->ri_flg |= RI_NO_AUTO;
    444 
    445 	switch (ri->ri_depth) {
    446 	case 8:
    447 		if (32 <= fbconf->hf_pack_width &&
    448 		    (fbconf->hf_order_flags & HPCFB_REVORDER_BYTE) &&
    449 		    (fbconf->hf_order_flags & HPCFB_REVORDER_WORD)) {
    450 			ri->ri_flg |= RI_BSWAP;
    451 		}
    452 		break;
    453 	default:
    454 		if (fbconf->hf_order_flags & HPCFB_REVORDER_BYTE) {
    455 #if BYTE_ORDER == BIG_ENDIAN
    456 			ri->ri_flg |= RI_BSWAP;
    457 #endif
    458 		} else {
    459 #if BYTE_ORDER == LITTLE_ENDIAN
    460 			ri->ri_flg |= RI_BSWAP;
    461 #endif
    462 		}
    463 		break;
    464 	}
    465 
    466 	if (fbconf->hf_class == HPCFB_CLASS_RGBCOLOR) {
    467 		ri->ri_rnum = fbconf->hf_u.hf_rgb.hf_red_width;
    468 		ri->ri_rpos = fbconf->hf_u.hf_rgb.hf_red_shift;
    469 		ri->ri_gnum = fbconf->hf_u.hf_rgb.hf_green_width;
    470 		ri->ri_gpos = fbconf->hf_u.hf_rgb.hf_green_shift;
    471 		ri->ri_bnum = fbconf->hf_u.hf_rgb.hf_blue_width;
    472 		ri->ri_bpos = fbconf->hf_u.hf_rgb.hf_blue_shift;
    473 	}
    474 
    475 	if (rasops_init(ri, HPCFB_MAX_ROW, HPCFB_MAX_COLUMN)) {
    476 		aprint_error_dev(dc->dc_sc->sc_dev, "rasops_init() failed!");
    477 		return -1;
    478 	}
    479 
    480 	/* over write color map of rasops */
    481 	hpcfb_cmap_reorder (fbconf, dc);
    482 
    483 	dc->dc_curx = -1;
    484 	dc->dc_cury = -1;
    485 	dc->dc_rows = dc->dc_rinfo.ri_rows;
    486 	dc->dc_cols = dc->dc_rinfo.ri_cols;
    487 #ifdef HPCFB_JUMP
    488 	dc->dc_max_row = 0;
    489 	dc->dc_min_row = dc->dc_rows;
    490 	dc->dc_scroll = 0;
    491 	callout_init(&dc->dc_scroll_ch, 0);
    492 #endif /* HPCFB_JUMP */
    493 	dc->dc_memsize = ri->ri_stride * ri->ri_height;
    494 	/* hook rasops in hpcfb_ops */
    495 	rasops_emul = ri->ri_ops; /* struct copy */
    496 	ri->ri_ops = hpcfb_emulops; /* struct copy */
    497 
    498 	return (0);
    499 }
    500 
    501 static void
    502 hpcfb_cmap_reorder(struct hpcfb_fbconf *fbconf, struct hpcfb_devconfig *dc)
    503 {
    504 	struct rasops_info *ri = &dc->dc_rinfo;
    505 	int reverse = fbconf->hf_access_flags & HPCFB_ACCESS_REVERSE;
    506 	int *cmap = ri->ri_devcmap;
    507 	int i, j, bg, fg, tmp;
    508 
    509 	/*
    510 	 * Set forground and background so that the screen
    511 	 * looks black on white.
    512 	 * Normally, black = 00 and white = ff.
    513 	 * HPCFB_ACCESS_REVERSE means black = ff and white = 00.
    514 	 */
    515 	switch (fbconf->hf_pixel_width) {
    516 	case 1:
    517 		/* FALLTHROUGH */
    518 	case 2:
    519 		/* FALLTHROUGH */
    520 	case 4:
    521 		if (reverse) {
    522 			bg = 0;
    523 			fg = ~0;
    524 		} else {
    525 			bg = ~0;
    526 			fg = 0;
    527 		}
    528 		/* for gray-scale LCD, hi-contrast color map */
    529 		cmap[0] = bg;
    530 		for (i = 1; i < 16; i++)
    531 			cmap[i] = fg;
    532 		break;
    533 	case 8:
    534 		/* FALLTHROUGH */
    535 	case 16:
    536 		if (reverse) {
    537 			for (i = 0, j = 15; i < 8; i++, j--) {
    538 				tmp = cmap[i];
    539 				cmap[i] = cmap[j];
    540 				cmap[j] = tmp;
    541 			}
    542 		}
    543 		break;
    544 	}
    545 }
    546 
    547 int
    548 hpcfb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
    549 	struct lwp *l)
    550 {
    551 	struct hpcfb_softc *sc = v;
    552 	struct hpcfb_devconfig *dc = sc->sc_dc;
    553 	struct wsdisplay_fbinfo *wdf;
    554 
    555 	DPRINTF(("hpcfb_ioctl(cmd=0x%lx)\n", cmd));
    556 	switch (cmd) {
    557 	case WSKBDIO_BELL:
    558 		return (0);
    559 		break;
    560 
    561 	case WSDISPLAYIO_GTYPE:
    562 		*(u_int *)data = WSDISPLAY_TYPE_HPCFB;
    563 		return (0);
    564 
    565 	case WSDISPLAYIO_GINFO:
    566 		wdf = (void *)data;
    567 		wdf->height = dc->dc_rinfo.ri_height;
    568 		wdf->width = dc->dc_rinfo.ri_width;
    569 		wdf->depth = dc->dc_rinfo.ri_depth;
    570 		wdf->cmsize = 256;	/* XXXX */
    571 		return (0);
    572 
    573 	case WSDISPLAYIO_LINEBYTES:
    574 		*(u_int *)data = dc->dc_rinfo.ri_stride;
    575 		return 0;
    576 
    577 	case WSDISPLAYIO_SMODE:
    578 		if (*(int *)data == WSDISPLAYIO_MODE_EMUL){
    579 			if (sc->sc_mapping){
    580 				sc->sc_mapping = 0;
    581 				if (dc->dc_state&HPCFB_DC_DRAWING)
    582 					dc->dc_state &= ~HPCFB_DC_ABORT;
    583 #ifdef HPCFB_FORCE_REDRAW
    584 				hpcfb_refresh_screen(sc);
    585 #else
    586 				dc->dc_state |= HPCFB_DC_UPDATEALL;
    587 #endif
    588 			}
    589 		} else {
    590 			if (!sc->sc_mapping) {
    591 				sc->sc_mapping = 1;
    592 				dc->dc_state |= HPCFB_DC_ABORT;
    593 			}
    594 			sc->sc_mapping = 1;
    595 		}
    596 		if (sc && sc->sc_accessops->iodone)
    597 			(*sc->sc_accessops->iodone)(sc->sc_accessctx);
    598 		return (0);
    599 
    600 	case WSDISPLAYIO_GETCMAP:
    601 	case WSDISPLAYIO_PUTCMAP:
    602 	case WSDISPLAYIO_SVIDEO:
    603 	case WSDISPLAYIO_GVIDEO:
    604 	case WSDISPLAYIO_GETPARAM:
    605 	case WSDISPLAYIO_SETPARAM:
    606 	case HPCFBIO_GCONF:
    607 	case HPCFBIO_SCONF:
    608 	case HPCFBIO_GDSPCONF:
    609 	case HPCFBIO_SDSPCONF:
    610 	case HPCFBIO_GOP:
    611 	case HPCFBIO_SOP:
    612 		return ((*sc->sc_accessops->ioctl)(sc->sc_accessctx,
    613 		    cmd, data, flag, l));
    614 
    615 	default:
    616 		if (IOCGROUP(cmd) != 't')
    617 			DPRINTF(("%s(%d): hpcfb_ioctl(%lx, %lx) grp=%c num=%ld\n",
    618 			    __FILE__, __LINE__,
    619 			    cmd, (u_long)data, (char)IOCGROUP(cmd), cmd&0xff));
    620 		break;
    621 	}
    622 
    623 	return (EPASSTHROUGH); /* Inappropriate ioctl for device */
    624 }
    625 
    626 paddr_t
    627 hpcfb_mmap(void *v, void *vs, off_t offset, int prot)
    628 {
    629 	struct hpcfb_softc *sc = v;
    630 
    631 	return ((*sc->sc_accessops->mmap)(sc->sc_accessctx, offset, prot));
    632 }
    633 
    634 static void
    635 hpcfb_power(int why, void *arg)
    636 {
    637 	struct hpcfb_softc *sc = arg;
    638 
    639 	if (sc->sc_dc == NULL)
    640 		return;	/* You have no screen yet. */
    641 
    642 	switch (why) {
    643 	case PWR_STANDBY:
    644 		break;
    645 	case PWR_SOFTSUSPEND: {
    646 		struct wsdisplay_softc *wsc = device_private(sc->sc_wsdisplay);
    647 
    648 		sc->sc_screen_resumed = wsdisplay_getactivescreen(wsc);
    649 
    650 		if (wsdisplay_switch(sc->sc_wsdisplay,
    651 		    WSDISPLAY_NULLSCREEN, 1 /* waitok */) == 0) {
    652 			wsscreen_switchwait(wsc, WSDISPLAY_NULLSCREEN);
    653 		} else {
    654 			sc->sc_screen_resumed = WSDISPLAY_NULLSCREEN;
    655 		}
    656 
    657 		sc->sc_dc->dc_state &= ~HPCFB_DC_CURRENT;
    658 		break;
    659 	    }
    660 	case PWR_SOFTRESUME:
    661 		sc->sc_dc->dc_state |= HPCFB_DC_CURRENT;
    662 		if (sc->sc_screen_resumed != WSDISPLAY_NULLSCREEN)
    663 			wsdisplay_switch(sc->sc_wsdisplay,
    664 			    sc->sc_screen_resumed, 1 /* waitok */);
    665 		break;
    666 	}
    667 }
    668 
    669 static bool
    670 hpcfb_suspend(device_t self, const pmf_qual_t *qual)
    671 {
    672 	struct hpcfb_softc *sc = device_private(self);
    673 
    674 	hpcfb_power(PWR_SOFTSUSPEND, sc);
    675 	return true;
    676 }
    677 
    678 static bool
    679 hpcfb_resume(device_t self, const pmf_qual_t *qual)
    680 {
    681 	struct hpcfb_softc *sc = device_private(self);
    682 
    683 	hpcfb_power(PWR_SOFTRESUME, sc);
    684 	return true;
    685 }
    686 
    687 void
    688 hpcfb_refresh_screen(struct hpcfb_softc *sc)
    689 {
    690 	struct hpcfb_devconfig *dc = sc->sc_dc;
    691 	int x, y;
    692 
    693 	DPRINTF(("hpcfb_refres_screen()\n"));
    694 	if (dc == NULL)
    695 		return;
    696 
    697 #ifdef HPCFB_JUMP
    698 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
    699 		dc->dc_state &= ~HPCFB_DC_SCROLLPENDING;
    700 		dc->dc_state &= ~HPCFB_DC_UPDATE;
    701 		callout_stop(&dc->dc_scroll_ch);
    702 	}
    703 #endif /* HPCFB_JUMP */
    704 	/*
    705 	 * refresh screen
    706 	 */
    707 	dc->dc_state &= ~HPCFB_DC_UPDATEALL;
    708 	x = dc->dc_curx;
    709 	y = dc->dc_cury;
    710 	if (0 <= x && 0 <= y)
    711 		hpcfb_cursor_raw(dc, 0,  y, x); /* disable cursor */
    712 	/* redraw all text */
    713 	hpcfb_redraw(dc, 0, dc->dc_rows, 1);
    714 	if (0 <= x && 0 <= y)
    715 		hpcfb_cursor_raw(dc, 1,  y, x); /* enable cursor */
    716 }
    717 
    718 static int
    719 hpcfb_alloc_screen(void *v, const struct wsscreen_descr *type,
    720 		   void **cookiep, int *curxp, int *curyp, long *attrp)
    721 {
    722 	struct hpcfb_softc *sc = v;
    723 	struct hpcfb_devconfig *dc;
    724 
    725 	DPRINTF(("%s(%d): hpcfb_alloc_screen()\n", __FILE__, __LINE__));
    726 
    727 	dc = malloc(sizeof(*dc), M_DEVBUF, M_WAITOK|M_ZERO);
    728 	if (dc == NULL)
    729 		return ENOMEM;
    730 
    731 	dc->dc_sc = sc;
    732 	if (hpcfb_init(&sc->sc_fbconflist[0], dc) != 0) {
    733 		free(dc, M_DEVBUF);
    734 		return EINVAL;
    735 	}
    736 	if (sc->sc_accessops->font) {
    737 		sc->sc_accessops->font(sc->sc_accessctx,
    738 		    dc->dc_rinfo.ri_font);
    739 	}
    740 	/* Set video chip dependent CLUT if any. */
    741 	if (sc->sc_accessops->setclut)
    742 		sc->sc_accessops->setclut(sc->sc_accessctx, &dc->dc_rinfo);
    743 	printf("hpcfb: %dx%d pixels, %d colors, %dx%d chars\n",
    744 	    dc->dc_rinfo.ri_width, dc->dc_rinfo.ri_height,
    745 	    (1 << dc->dc_rinfo.ri_depth),
    746 	    dc->dc_rinfo.ri_cols, dc->dc_rinfo.ri_rows);
    747 
    748 	/*
    749 	 * XXX, wsdisplay won't reffer the information in wsscreen_descr
    750 	 * structure until alloc_screen will be called, at least, under
    751 	 * current implementation...
    752 	 */
    753 	hpcfb_stdscreen.nrows = dc->dc_rows;
    754         hpcfb_stdscreen.ncols = dc->dc_cols;
    755 	hpcfb_stdscreen.capabilities = dc->dc_rinfo.ri_caps;
    756 
    757 	dc->dc_fbaddr = dc->dc_rinfo.ri_bits;
    758 	dc->dc_rows = dc->dc_rinfo.ri_rows;
    759 	dc->dc_cols = dc->dc_rinfo.ri_cols;
    760 	dc->dc_memsize = dc->dc_rinfo.ri_stride * dc->dc_rinfo.ri_height;
    761 
    762 	dc->dc_curx = -1;
    763 	dc->dc_cury = -1;
    764 	dc->dc_tvram = malloc(sizeof(struct hpcfb_tvrow)*dc->dc_rows,
    765 	    M_DEVBUF, M_WAITOK|M_ZERO);
    766 	if (dc->dc_tvram == NULL){
    767 		free(dc, M_DEVBUF);
    768 		return (ENOMEM);
    769 	}
    770 
    771 	*curxp = 0;
    772 	*curyp = 0;
    773 	*cookiep = dc;
    774 	hpcfb_allocattr(*cookiep, WSCOL_WHITE, WSCOL_BLACK, 0, attrp);
    775 	DPRINTF(("%s(%d): hpcfb_alloc_screen(): %p\n",
    776 	    __FILE__, __LINE__, dc));
    777 
    778 	return (0);
    779 }
    780 
    781 static void
    782 hpcfb_free_screen(void *v, void *cookie)
    783 {
    784 	struct hpcfb_devconfig *dc = cookie;
    785 
    786 	DPRINTF(("%s(%d): hpcfb_free_screen(%p)\n",
    787 	    __FILE__, __LINE__, cookie));
    788 #ifdef DIAGNOSTIC
    789 	if (dc == &hpcfb_console_dc)
    790 		panic("hpcfb_free_screen: console");
    791 #endif
    792 	free(dc->dc_tvram, M_DEVBUF);
    793 	free(dc, M_DEVBUF);
    794 }
    795 
    796 static int
    797 hpcfb_show_screen(void *v, void *cookie, int waitok,
    798     void (*cb)(void *, int, int), void *cbarg)
    799 {
    800 	struct hpcfb_softc *sc = v;
    801 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
    802 	struct hpcfb_devconfig *odc;
    803 
    804 	DPRINTF(("%s(%d): hpcfb_show_screen(%p)\n",
    805 	    __FILE__, __LINE__, dc));
    806 
    807 	odc = sc->sc_dc;
    808 
    809 	if (dc == NULL || odc == dc) {
    810 		hpcfb_refresh_screen(sc);
    811 		return (0);
    812 	}
    813 
    814 	if (odc != NULL) {
    815 		odc->dc_state |= HPCFB_DC_SWITCHREQ;
    816 
    817 		if ((odc->dc_state&HPCFB_DC_DRAWING) != 0) {
    818 			odc->dc_state |= HPCFB_DC_ABORT;
    819 		}
    820 	}
    821 
    822 	sc->sc_wantedscreen = cookie;
    823 	sc->sc_switchcb = cb;
    824 	sc->sc_switchcbarg = cbarg;
    825 	if (cb) {
    826 		callout_reset(&sc->sc_switch_callout, 0,
    827 		    (void(*)(void *))hpcfb_doswitch, sc);
    828 		return (EAGAIN);
    829 	}
    830 
    831 	hpcfb_doswitch(sc);
    832 	return (0);
    833 }
    834 
    835 void
    836 hpcfb_doswitch(struct hpcfb_softc *sc)
    837 {
    838 	struct hpcfb_devconfig *dc;
    839 	struct hpcfb_devconfig *odc;
    840 
    841 	DPRINTF(("hpcfb_doswitch()\n"));
    842 	odc = sc->sc_dc;
    843 	dc = sc->sc_wantedscreen;
    844 
    845 	if (!dc) {
    846 		(*sc->sc_switchcb)(sc->sc_switchcbarg, EIO, 0);
    847 		odc->dc_state &= ~HPCFB_DC_SWITCHREQ;
    848 		return;
    849 	}
    850 
    851 	if (odc == dc) {
    852 		odc->dc_state &= ~HPCFB_DC_SWITCHREQ;
    853 		return;
    854 	}
    855 
    856 	if (odc) {
    857 #ifdef HPCFB_JUMP
    858 		odc->dc_state |= HPCFB_DC_ABORT;
    859 #endif /* HPCFB_JUMP */
    860 
    861 		if (odc->dc_curx >= 0 && odc->dc_cury >= 0)
    862 			hpcfb_cursor_raw(odc, 0,  odc->dc_cury, odc->dc_curx);
    863 		/* disable cursor */
    864 		/* disable old screen */
    865 		odc->dc_state &= ~HPCFB_DC_CURRENT;
    866 		/* XXX, This is too dangerous.
    867 		odc->dc_rinfo.ri_bits = NULL;
    868 		*/
    869 	}
    870 	/* switch screen to new one */
    871 	dc->dc_state |= HPCFB_DC_CURRENT;
    872 	dc->dc_state &= ~HPCFB_DC_ABORT;
    873 	dc->dc_rinfo.ri_bits = dc->dc_fbaddr;
    874 	sc->sc_dc = dc;
    875 
    876 	/* redraw screen image */
    877 	hpcfb_refresh_screen(sc);
    878 
    879 	sc->sc_wantedscreen = NULL;
    880 	if (sc->sc_switchcb)
    881 		(*sc->sc_switchcb)(sc->sc_switchcbarg, 0, 0);
    882 
    883 	if (odc != NULL)
    884 		odc->dc_state &= ~HPCFB_DC_SWITCHREQ;
    885 	dc->dc_state &= ~HPCFB_DC_SWITCHREQ;
    886 	return;
    887 }
    888 
    889 static void
    890 hpcfb_pollc(void *v, int on)
    891 {
    892 	struct hpcfb_softc *sc = v;
    893 
    894 	if (sc == NULL)
    895 		return;
    896 	sc->sc_polling = on;
    897 	if (sc->sc_accessops->iodone)
    898 		(*sc->sc_accessops->iodone)(sc->sc_accessctx);
    899 	if (on) {
    900 		hpcfb_refresh_screen(sc);
    901 		if (sc->sc_accessops->iodone)
    902 			(*sc->sc_accessops->iodone)(sc->sc_accessctx);
    903 	}
    904 
    905 	return;
    906 }
    907 
    908 /*
    909  * cursor
    910  */
    911 void
    912 hpcfb_cursor(void *cookie, int on, int row, int col)
    913 {
    914 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
    915 
    916 	if (on) {
    917 		dc->dc_curx = col;
    918 		dc->dc_cury = row;
    919 	} else {
    920 		dc->dc_curx = -1;
    921 		dc->dc_cury = -1;
    922 	}
    923 
    924 	hpcfb_cursor_raw(cookie, on, row, col);
    925 }
    926 
    927 void
    928 hpcfb_cursor_raw(void *cookie, int on, int row, int col)
    929 {
    930 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
    931 	struct hpcfb_softc *sc = dc->dc_sc;
    932 	struct rasops_info *ri = &dc->dc_rinfo;
    933 	int curwidth, curheight;
    934 	int xoff, yoff;
    935 
    936 #ifdef HPCFB_JUMP
    937 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
    938 		dc->dc_state |= HPCFB_DC_UPDATE;
    939 		return;
    940 	}
    941 #endif /* HPCFB_JUMP */
    942 	if (!IS_DRAWABLE(dc)) {
    943 		return;
    944 	}
    945 
    946 	if (ri->ri_bits == NULL)
    947 		return;
    948 
    949 	dc->dc_state |= HPCFB_DC_DRAWING;
    950 	if (sc && sc->sc_accessops->cursor) {
    951 		xoff = col * ri->ri_font->fontwidth;
    952 		yoff = row * ri->ri_font->fontheight;
    953 		curheight = ri->ri_font->fontheight;
    954 		curwidth = ri->ri_font->fontwidth;
    955 		(*sc->sc_accessops->cursor)(sc->sc_accessctx,
    956 		    on, xoff, yoff, curwidth, curheight);
    957 	} else
    958 		rasops_emul.cursor(ri, on, row, col);
    959 	dc->dc_state &= ~HPCFB_DC_DRAWING;
    960 }
    961 
    962 /*
    963  * mapchar
    964  */
    965 int
    966 hpcfb_mapchar(void *cookie, int c, unsigned int *cp)
    967 {
    968 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
    969 	struct rasops_info *ri = &dc->dc_rinfo;
    970 
    971 	return (rasops_emul.mapchar(ri, c, cp));
    972 }
    973 
    974 /*
    975  * putchar
    976  */
    977 void
    978 hpcfb_tv_putchar(struct hpcfb_devconfig *dc, int row, int col, u_int uc,
    979     long attr)
    980 {
    981 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
    982 	struct hpcfb_vchar *vc = &vscn[row].col[col];
    983 	struct hpcfb_vchar *vcb;
    984 
    985 	if (vscn == 0)
    986 		return;
    987 
    988 	dc->dc_state |= HPCFB_DC_TDRAWING;
    989 #ifdef HPCFB_JUMP
    990 	if (row < dc->dc_min_row)
    991 		dc->dc_min_row = row;
    992 	if (row > dc->dc_max_row)
    993 		dc->dc_max_row = row;
    994 
    995 #endif /* HPCFB_JUMP */
    996 	if (vscn[row].maxcol +1 == col)
    997 		vscn[row].maxcol = col;
    998 	else if (vscn[row].maxcol < col) {
    999 		vcb =  &vscn[row].col[vscn[row].maxcol+1];
   1000 		memset(vcb, 0,
   1001 		    sizeof(struct hpcfb_vchar)*(col-vscn[row].maxcol-1));
   1002 		vscn[row].maxcol = col;
   1003 	}
   1004 	vc->c = uc;
   1005 	vc->attr = attr;
   1006 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1007 #ifdef HPCFB_JUMP
   1008 	hpcfb_check_update(dc);
   1009 #endif /* HPCFB_JUMP */
   1010 }
   1011 
   1012 void
   1013 hpcfb_putchar(void *cookie, int row, int col, u_int uc, long attr)
   1014 {
   1015 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1016 	struct hpcfb_softc *sc = dc->dc_sc;
   1017 	struct rasops_info *ri = &dc->dc_rinfo;
   1018 	int xoff;
   1019 	int yoff;
   1020 	int fclr, uclr;
   1021 	struct wsdisplay_font *font;
   1022 
   1023 	hpcfb_tv_putchar(dc, row, col, uc, attr);
   1024 #ifdef HPCFB_JUMP
   1025 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
   1026 		dc->dc_state |= HPCFB_DC_UPDATE;
   1027 		return;
   1028 	}
   1029 #endif /* HPCFB_JUMP */
   1030 
   1031 	if (!IS_DRAWABLE(dc)) {
   1032 		return;
   1033 	}
   1034 
   1035 	if (ri->ri_bits == NULL)
   1036 		return;
   1037 
   1038 	dc->dc_state |= HPCFB_DC_DRAWING;
   1039 	if (sc && sc->sc_accessops->putchar
   1040 	    && (dc->dc_state&HPCFB_DC_CURRENT)) {
   1041 		font = ri->ri_font;
   1042 		yoff = row * ri->ri_font->fontheight;
   1043 		xoff =  col * ri->ri_font->fontwidth;
   1044 		fclr = ri->ri_devcmap[((u_int)attr >> 24) & 15];
   1045 		uclr = ri->ri_devcmap[((u_int)attr >> 16) & 15];
   1046 
   1047 		(*sc->sc_accessops->putchar)(sc->sc_accessctx,
   1048 		    xoff, yoff, font, fclr, uclr, uc, attr);
   1049 	} else
   1050 		rasops_emul.putchar(ri, row, col, uc, attr);
   1051 	dc->dc_state &= ~HPCFB_DC_DRAWING;
   1052 #ifdef HPCFB_JUMP
   1053 	hpcfb_check_update(dc);
   1054 #endif /* HPCFB_JUMP */
   1055 }
   1056 
   1057 /*
   1058  * copycols
   1059  */
   1060 void
   1061 hpcfb_tv_copycols(struct hpcfb_devconfig *dc, int row, int srccol, int dstcol,
   1062     int ncols)
   1063 {
   1064 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
   1065 	struct hpcfb_vchar *svc = &vscn[row].col[srccol];
   1066 	struct hpcfb_vchar *dvc = &vscn[row].col[dstcol];
   1067 
   1068 	if (vscn == 0)
   1069 		return;
   1070 
   1071 	dc->dc_state |= HPCFB_DC_TDRAWING;
   1072 #ifdef HPCFB_JUMP
   1073 	if (row < dc->dc_min_row)
   1074 		dc->dc_min_row = row;
   1075 	if (row > dc->dc_max_row)
   1076 		dc->dc_max_row = row;
   1077 #endif /* HPCFB_JUMP */
   1078 
   1079 	memcpy(dvc, svc, ncols*sizeof(struct hpcfb_vchar));
   1080 	if (vscn[row].maxcol < srccol+ncols-1)
   1081 		vscn[row].maxcol = srccol+ncols-1;
   1082 	if (vscn[row].maxcol < dstcol+ncols-1)
   1083 		vscn[row].maxcol = dstcol+ncols-1;
   1084 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1085 #ifdef HPCFB_JUMP
   1086 	hpcfb_check_update(dc);
   1087 #endif /* HPCFB_JUMP */
   1088 }
   1089 
   1090 void
   1091 hpcfb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols)
   1092 {
   1093 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1094 	struct hpcfb_softc *sc = dc->dc_sc;
   1095 	struct rasops_info *ri = &dc->dc_rinfo;
   1096 	int srcxoff,dstxoff;
   1097 	int srcyoff,dstyoff;
   1098 	int height, width;
   1099 
   1100 	hpcfb_tv_copycols(dc, row, srccol, dstcol, ncols);
   1101 #ifdef HPCFB_JUMP
   1102 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
   1103 		dc->dc_state |= HPCFB_DC_UPDATE;
   1104 		return;
   1105 	}
   1106 #endif /* HPCFB_JUMP */
   1107 	if (!IS_DRAWABLE(dc)) {
   1108 		return;
   1109 	}
   1110 
   1111 	if (ri->ri_bits == NULL)
   1112 		return;
   1113 
   1114 	dc->dc_state |= HPCFB_DC_DRAWING;
   1115 	if (sc && sc->sc_accessops->bitblit
   1116 	    && (dc->dc_state&HPCFB_DC_CURRENT)) {
   1117 		srcxoff = srccol * ri->ri_font->fontwidth;
   1118 		srcyoff = row * ri->ri_font->fontheight;
   1119 		dstxoff = dstcol * ri->ri_font->fontwidth;
   1120 		dstyoff = row * ri->ri_font->fontheight;
   1121 		width = ncols * ri->ri_font->fontwidth;
   1122 		height = ri->ri_font->fontheight;
   1123 		(*sc->sc_accessops->bitblit)(sc->sc_accessctx,
   1124 		    srcxoff, srcyoff, dstxoff, dstyoff, height, width);
   1125 	} else
   1126 		rasops_emul.copycols(ri, row, srccol, dstcol, ncols);
   1127 	dc->dc_state &= ~HPCFB_DC_DRAWING;
   1128 #ifdef HPCFB_JUMP
   1129 	hpcfb_check_update(dc);
   1130 #endif /* HPCFB_JUMP */
   1131 }
   1132 
   1133 
   1134 /*
   1135  * erasecols
   1136  */
   1137 void
   1138 hpcfb_tv_erasecols(struct hpcfb_devconfig *dc,
   1139 		   int row, int startcol, int ncols, long attr)
   1140 {
   1141 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
   1142 
   1143 	if (vscn == 0)
   1144 		return;
   1145 
   1146 	dc->dc_state |= HPCFB_DC_TDRAWING;
   1147 #ifdef HPCFB_JUMP
   1148 	if (row < dc->dc_min_row)
   1149 		dc->dc_min_row = row;
   1150 	if (row > dc->dc_max_row)
   1151 		dc->dc_max_row = row;
   1152 #endif /* HPCFB_JUMP */
   1153 
   1154 	vscn[row].maxcol = startcol-1;
   1155 	if (vscn[row].spacecol < startcol+ncols-1)
   1156 		vscn[row].spacecol = startcol+ncols-1;
   1157 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1158 #ifdef HPCFB_JUMP
   1159 	hpcfb_check_update(dc);
   1160 #endif /* HPCFB_JUMP */
   1161 }
   1162 
   1163 void
   1164 hpcfb_erasecols(void *cookie, int row, int startcol, int ncols, long attr)
   1165 {
   1166 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1167 	struct hpcfb_softc *sc = dc->dc_sc;
   1168 	struct rasops_info *ri = &dc->dc_rinfo;
   1169 	int xoff, yoff;
   1170 	int width, height;
   1171 
   1172 	hpcfb_tv_erasecols(dc, row, startcol, ncols, attr);
   1173 #ifdef HPCFB_JUMP
   1174 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
   1175 		dc->dc_state |= HPCFB_DC_UPDATE;
   1176 		return;
   1177 	}
   1178 #endif /* HPCFB_JUMP */
   1179 	if (!IS_DRAWABLE(dc)) {
   1180 		return;
   1181 	}
   1182 
   1183 	if (ri->ri_bits == NULL)
   1184 		return;
   1185 
   1186 	dc->dc_state |= HPCFB_DC_DRAWING;
   1187 	if (sc && sc->sc_accessops->erase
   1188 	    && (dc->dc_state&HPCFB_DC_CURRENT)) {
   1189 		xoff = startcol * ri->ri_font->fontwidth;
   1190 		yoff = row * ri->ri_font->fontheight;
   1191 		width = ncols * ri->ri_font->fontwidth;
   1192 		height = ri->ri_font->fontheight;
   1193 		(*sc->sc_accessops->erase)(sc->sc_accessctx,
   1194 		    xoff, yoff, height, width, attr);
   1195 	} else
   1196 		rasops_emul.erasecols(ri, row, startcol, ncols, attr);
   1197 	dc->dc_state &= ~HPCFB_DC_DRAWING;
   1198 #ifdef HPCFB_JUMP
   1199 	hpcfb_check_update(dc);
   1200 #endif /* HPCFB_JUMP */
   1201 }
   1202 
   1203 /*
   1204  * Copy rows.
   1205  */
   1206 void
   1207 hpcfb_tv_copyrows(struct hpcfb_devconfig *dc, int src, int dst, int num)
   1208 {
   1209 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
   1210 	struct hpcfb_tvrow *svc = &vscn[src];
   1211 	struct hpcfb_tvrow *dvc = &vscn[dst];
   1212 	int i;
   1213 	int d;
   1214 
   1215 	if (vscn == 0)
   1216 		return;
   1217 
   1218 	dc->dc_state |= HPCFB_DC_TDRAWING;
   1219 #ifdef HPCFB_JUMP
   1220 	if (dst < dc->dc_min_row)
   1221 		dc->dc_min_row = dst;
   1222 	if (dst + num > dc->dc_max_row)
   1223 		dc->dc_max_row = dst + num -1;
   1224 #endif /* HPCFB_JUMP */
   1225 
   1226 	if (svc > dvc)
   1227 		d = 1;
   1228 	else if (svc < dvc) {
   1229 		svc += num-1;
   1230 		dvc += num-1;
   1231 		d = -1;
   1232 	} else  {
   1233 		dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1234 #ifdef HPCFB_JUMP
   1235 		hpcfb_check_update(dc);
   1236 #endif /* HPCFB_JUMP */
   1237 		return;
   1238 	}
   1239 
   1240 	for (i = 0; i < num; i++) {
   1241 		memcpy(&dvc->col[0], &svc->col[0], sizeof(struct hpcfb_vchar)*(svc->maxcol+1));
   1242 		if (svc->maxcol < dvc->maxcol && dvc->spacecol < dvc->maxcol)
   1243 			dvc->spacecol = dvc->maxcol;
   1244 		dvc->maxcol = svc->maxcol;
   1245 		svc+=d;
   1246 		dvc+=d;
   1247 	}
   1248 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1249 #ifdef HPCFB_JUMP
   1250 	hpcfb_check_update(dc);
   1251 #endif /* HPCFB_JUMP */
   1252 }
   1253 
   1254 void
   1255 hpcfb_redraw(void *cookie, int row, int num, int all)
   1256 {
   1257 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1258 	struct rasops_info *ri = &dc->dc_rinfo;
   1259 	int cols;
   1260 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
   1261 	struct hpcfb_vchar *svc;
   1262 	int i, j;
   1263 
   1264 #ifdef HPCFB_JUMP
   1265 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
   1266 		dc->dc_state |= HPCFB_DC_UPDATE;
   1267 		return;
   1268 	}
   1269 #endif /* HPCFB_JUMP */
   1270 	if (dc->dc_sc != NULL
   1271 	    && !dc->dc_sc->sc_polling
   1272 	    && dc->dc_sc->sc_mapping)
   1273 		return;
   1274 
   1275 	dc->dc_state &= ~HPCFB_DC_ABORT;
   1276 
   1277 	if (vscn == 0)
   1278 		return;
   1279 
   1280 	if (!IS_DRAWABLE(dc)) {
   1281 		return;
   1282 	}
   1283 
   1284 	if (ri->ri_bits == NULL)
   1285 		return;
   1286 
   1287 	dc->dc_state |= HPCFB_DC_DRAWING;
   1288 	dc->dc_state |= HPCFB_DC_TDRAWING;
   1289 	for (i = 0; i < num; i++) {
   1290 		if (dc->dc_state&HPCFB_DC_ABORT)
   1291 			break;
   1292 		if ((dc->dc_state&HPCFB_DC_CURRENT) == 0)
   1293 			break;
   1294 		cols = vscn[row+i].maxcol;
   1295 		for (j = 0; j <= cols; j++) {
   1296 			if (dc->dc_state&HPCFB_DC_ABORT)
   1297 				continue;
   1298 			if ((dc->dc_state&HPCFB_DC_CURRENT) == 0)
   1299 				continue;
   1300 			svc = &vscn[row+i].col[j];
   1301 			rasops_emul.putchar(ri, row + i, j, svc->c, svc->attr);
   1302 		}
   1303 		if (all)
   1304 			cols = dc->dc_cols-1;
   1305 		else
   1306 			cols = vscn[row+i].spacecol;
   1307 		for (; j <= cols; j++) {
   1308 			if (dc->dc_state&HPCFB_DC_ABORT)
   1309 				continue;
   1310 			if ((dc->dc_state&HPCFB_DC_CURRENT) == 0)
   1311 				continue;
   1312 			rasops_emul.putchar(ri, row + i, j, ' ', 0);
   1313 		}
   1314 		vscn[row+i].spacecol = 0;
   1315 	}
   1316 	if (dc->dc_state&HPCFB_DC_ABORT)
   1317 		dc->dc_state &= ~HPCFB_DC_ABORT;
   1318 	dc->dc_state &= ~HPCFB_DC_DRAWING;
   1319 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1320 #ifdef HPCFB_JUMP
   1321 	hpcfb_check_update(dc);
   1322 #endif /* HPCFB_JUMP */
   1323 }
   1324 
   1325 #ifdef HPCFB_JUMP
   1326 void
   1327 hpcfb_update(void *v)
   1328 {
   1329 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)v;
   1330 
   1331 	/* callout_stop(&dc->dc_scroll_ch); */
   1332 	dc->dc_state &= ~HPCFB_DC_SCROLLPENDING;
   1333 	if (dc->dc_curx > 0 && dc->dc_cury > 0)
   1334 		hpcfb_cursor_raw(dc, 0,  dc->dc_cury, dc->dc_curx);
   1335 	if ((dc->dc_state&HPCFB_DC_UPDATEALL)) {
   1336 		hpcfb_redraw(dc, 0, dc->dc_rows, 1);
   1337 		dc->dc_state &= ~(HPCFB_DC_UPDATE|HPCFB_DC_UPDATEALL);
   1338 	} else if ((dc->dc_state&HPCFB_DC_UPDATE)) {
   1339 		hpcfb_redraw(dc, dc->dc_min_row,
   1340 		    dc->dc_max_row - dc->dc_min_row, 0);
   1341 		dc->dc_state &= ~HPCFB_DC_UPDATE;
   1342 	} else {
   1343 		hpcfb_redraw(dc, dc->dc_scroll_dst, dc->dc_scroll_num, 0);
   1344 	}
   1345 	if (dc->dc_curx > 0 && dc->dc_cury > 0)
   1346 		hpcfb_cursor_raw(dc, 1,  dc->dc_cury, dc->dc_curx);
   1347 }
   1348 
   1349 void
   1350 hpcfb_do_scroll(void *v)
   1351 {
   1352 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)v;
   1353 
   1354 	dc->dc_state |= HPCFB_DC_SCRTHREAD;
   1355 	if (dc->dc_state&(HPCFB_DC_DRAWING|HPCFB_DC_TDRAWING))
   1356 		dc->dc_state |= HPCFB_DC_SCRDELAY;
   1357 	else if (dc->dc_sc != NULL && dc->dc_sc->sc_thread)
   1358 		wakeup(dc->dc_sc);
   1359 	else if (dc->dc_sc != NULL && !dc->dc_sc->sc_mapping) {
   1360 		/* draw only EMUL mode */
   1361 		hpcfb_update(v);
   1362 	}
   1363 	dc->dc_state &= ~HPCFB_DC_SCRTHREAD;
   1364 }
   1365 
   1366 void
   1367 hpcfb_check_update(void *v)
   1368 {
   1369 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)v;
   1370 
   1371 	if (dc->dc_sc != NULL
   1372 	    && dc->dc_sc->sc_polling
   1373 	    && (dc->dc_state&HPCFB_DC_SCROLLPENDING)){
   1374 		callout_stop(&dc->dc_scroll_ch);
   1375 		dc->dc_state &= ~HPCFB_DC_SCRDELAY;
   1376 		hpcfb_update(v);
   1377 	}
   1378 	else if (dc->dc_state&HPCFB_DC_SCRDELAY){
   1379 		dc->dc_state &= ~HPCFB_DC_SCRDELAY;
   1380 		hpcfb_update(v);
   1381 	} else if (dc->dc_state&HPCFB_DC_UPDATEALL){
   1382 		dc->dc_state &= ~HPCFB_DC_UPDATEALL;
   1383 		hpcfb_update(v);
   1384 	}
   1385 }
   1386 #endif /* HPCFB_JUMP */
   1387 
   1388 void
   1389 hpcfb_copyrows(void *cookie, int src, int dst, int num)
   1390 {
   1391 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1392 	struct rasops_info *ri = &dc->dc_rinfo;
   1393 	struct hpcfb_softc *sc = dc->dc_sc;
   1394 	int srcyoff, dstyoff;
   1395 	int width, height;
   1396 
   1397 	hpcfb_tv_copyrows(cookie, src, dst, num);
   1398 
   1399 	if (!IS_DRAWABLE(dc)) {
   1400 		return;
   1401 	}
   1402 
   1403 	if (ri->ri_bits == NULL)
   1404 		return;
   1405 
   1406 	if (sc && sc->sc_accessops->bitblit
   1407 	    && (dc->dc_state&HPCFB_DC_CURRENT)) {
   1408 		dc->dc_state |= HPCFB_DC_DRAWING;
   1409 		srcyoff = src * ri->ri_font->fontheight;
   1410 		dstyoff = dst * ri->ri_font->fontheight;
   1411 		width = dc->dc_cols * ri->ri_font->fontwidth;
   1412 		height = num * ri->ri_font->fontheight;
   1413 		(*sc->sc_accessops->bitblit)(sc->sc_accessctx,
   1414 		    0, srcyoff, 0, dstyoff, height, width);
   1415 		dc->dc_state &= ~HPCFB_DC_DRAWING;
   1416 	}
   1417 	else {
   1418 #ifdef HPCFB_JUMP
   1419 		if (sc && sc->sc_polling) {
   1420 			hpcfb_check_update(dc);
   1421 		} else if ((dc->dc_state&HPCFB_DC_SCROLLPENDING) == 0) {
   1422 			dc->dc_state |= HPCFB_DC_SCROLLPENDING;
   1423 			dc->dc_scroll = 1;
   1424 			dc->dc_scroll_src = src;
   1425 			dc->dc_scroll_dst = dst;
   1426 			dc->dc_scroll_num = num;
   1427 			callout_reset(&dc->dc_scroll_ch, hz/100, &hpcfb_do_scroll, dc);
   1428 			return;
   1429 		} else if (dc->dc_scroll++ < dc->dc_rows/HPCFB_MAX_JUMP) {
   1430 			dc->dc_state |= HPCFB_DC_UPDATE;
   1431 			return;
   1432 		} else {
   1433 			dc->dc_state &= ~HPCFB_DC_SCROLLPENDING;
   1434 			callout_stop(&dc->dc_scroll_ch);
   1435 		}
   1436 		if (dc->dc_state&HPCFB_DC_UPDATE) {
   1437 			dc->dc_state &= ~HPCFB_DC_UPDATE;
   1438 			hpcfb_redraw(cookie, dc->dc_min_row,
   1439 			    dc->dc_max_row - dc->dc_min_row, 0);
   1440 			dc->dc_max_row = 0;
   1441 			dc->dc_min_row = dc->dc_rows;
   1442 			if (dc->dc_curx > 0 && dc->dc_cury > 0)
   1443 				hpcfb_cursor(dc, 1,  dc->dc_cury, dc->dc_curx);
   1444 			return;
   1445 		}
   1446 #endif /* HPCFB_JUMP */
   1447 		hpcfb_redraw(cookie, dst, num, 0);
   1448 	}
   1449 #ifdef HPCFB_JUMP
   1450 	hpcfb_check_update(dc);
   1451 #endif /* HPCFB_JUMP */
   1452 }
   1453 
   1454 /*
   1455  * eraserows
   1456  */
   1457 void
   1458 hpcfb_tv_eraserows(struct hpcfb_devconfig *dc,
   1459 		   int row, int nrow, long attr)
   1460 {
   1461 	struct hpcfb_tvrow *vscn = dc->dc_tvram;
   1462 	int cols;
   1463 	int i;
   1464 
   1465 	if (vscn == 0)
   1466 		return;
   1467 
   1468 	dc->dc_state |= HPCFB_DC_TDRAWING;
   1469 	dc->dc_state &= ~HPCFB_DC_TDRAWING;
   1470 #ifdef HPCFB_JUMP
   1471 	if (row < dc->dc_min_row)
   1472 		dc->dc_min_row = row;
   1473 	if (row + nrow > dc->dc_max_row)
   1474 		dc->dc_max_row = row + nrow;
   1475 #endif /* HPCFB_JUMP */
   1476 
   1477 	for (i = 0; i < nrow; i++) {
   1478 		cols = vscn[row+i].maxcol;
   1479 		if (vscn[row+i].spacecol < cols)
   1480 			vscn[row+i].spacecol = cols;
   1481 		vscn[row+i].maxcol = -1;
   1482 	}
   1483 #ifdef HPCFB_JUMP
   1484 	hpcfb_check_update(dc);
   1485 #endif /* HPCFB_JUMP */
   1486 }
   1487 
   1488 void
   1489 hpcfb_eraserows(void *cookie, int row, int nrow, long attr)
   1490 {
   1491 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1492 	struct hpcfb_softc *sc = dc->dc_sc;
   1493 	struct rasops_info *ri = &dc->dc_rinfo;
   1494 	int yoff;
   1495 	int width;
   1496 	int height;
   1497 
   1498 	hpcfb_tv_eraserows(dc, row, nrow, attr);
   1499 #ifdef HPCFB_JUMP
   1500 	if (dc->dc_state&HPCFB_DC_SCROLLPENDING) {
   1501 		dc->dc_state |= HPCFB_DC_UPDATE;
   1502 		return;
   1503 	}
   1504 #endif /* HPCFB_JUMP */
   1505 	if (!IS_DRAWABLE(dc)) {
   1506 		return;
   1507 	}
   1508 
   1509 	if (ri->ri_bits == NULL)
   1510 		return;
   1511 
   1512 	dc->dc_state |= HPCFB_DC_DRAWING;
   1513 	if (sc && sc->sc_accessops->erase
   1514 	    && (dc->dc_state&HPCFB_DC_CURRENT)) {
   1515 		yoff = row * ri->ri_font->fontheight;
   1516 		width = dc->dc_cols * ri->ri_font->fontwidth;
   1517 		height = nrow * ri->ri_font->fontheight;
   1518 		(*sc->sc_accessops->erase)(sc->sc_accessctx,
   1519 		    0, yoff, height, width, attr);
   1520 	} else
   1521 		rasops_emul.eraserows(ri, row, nrow, attr);
   1522 	dc->dc_state &= ~HPCFB_DC_DRAWING;
   1523 #ifdef HPCFB_JUMP
   1524 	hpcfb_check_update(dc);
   1525 #endif /* HPCFB_JUMP */
   1526 }
   1527 
   1528 /*
   1529  * allocattr
   1530  */
   1531 int
   1532 hpcfb_allocattr(void *cookie, int fg, int bg, int flags, long *attrp)
   1533 {
   1534 	struct hpcfb_devconfig *dc = (struct hpcfb_devconfig *)cookie;
   1535 	struct rasops_info *ri = &dc->dc_rinfo;
   1536 
   1537 	return (rasops_emul.allocattr(ri, fg, bg, flags, attrp));
   1538 }
   1539